Activity concentrations of selected natural radionuclides in food samples from the Czech Republic

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F25%3AN0000026" target="_blank" >RIV/86652052:_____/25:N0000026 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/rpd/article/201/18/1181/8260800" target="_blank" >https://academic.oup.com/rpd/article/201/18/1181/8260800</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/rpd/ncaf105" target="_blank" >10.1093/rpd/ncaf105</a>

Result language
angličtina
Original language name
Activity concentrations of selected natural radionuclides in food samples from the Czech Republic
Original language description
Activity concentrations of radionuclides from the thorium and uranium series, which contribute most to radiation exposure through ingestion in the existing radiation situation, were measured. Activity concentrations were determined in common foods in the Czech Republic. The determination of the activity concentrations was carried out by a combination of radiochemical separation followed by emanometry, gamma spectrometry or alpha spectrometry. Between 2020 and 2023, 51 “mixed diet” samples were analysed for 226Ra and 38 for 228Ra. The average daily intake for adults was 30.8 mBq for ²²⁶Ra and 32.9 mBq for ²²⁸Ra. The annual committed effective dose for adults from food was 3.15 µSv/year for ²²⁶Ra and 8.3 µSv/year for ²²⁸Ra, both of which are lower than the doses calculated using the reference activity concentrations from the UNSCEAR (2000) report. Similarly, activity concentrations of 226Ra, 228Ra, 238U, and 234U determined in seven common foodstuffs were lower than UNSCEAR (2000). Additionally, analyses of 210Po in leafy vegetables showed the highest median values in lettuce (62-67 mBq/kg of fresh weight) and the lowest in cabbage (7-14 mBq/kg), both comparable with UNSCEAR reference values.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30304 - Public and environmental health

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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